Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Nonthaburi | 2020/02/02 06:45 | Kasidit Samrej v Krittin Koaykul | 6-2,6-3 |
| ITF M25 Nakhon Si Thammarat | 2023/06/13 04:50 | Koki Matsuda v Krittin Koaykul | 6-3,4-6,6-7 |
| ITF M15 Nakhon Si Thammarat Qual | 2023/06/04 04:15 | Krittin Koaykul v Bang Shuo Yin | 4-6,3-6 |
| ITF M15 Nakhon Si Thammarat | 2023/06/01 03:45 | Nitin Kumar Sinha v Krittin Koaykul | 7-5,7-5 |
| ITF M15 Nakhon Si Thammarat | 2023/05/30 01:50 | Krittin Koaykul v Thanapet Chanta | 6-3,6-4 |
| ITF M25 Kashiwa | 2023/04/02 02:30 | Koki Matsuda v Krittin Koaykul | 6-3,6-3 |
| ITF M25 Tsukuba | 2023/03/27 00:30 | Krittin Koaykul v Shohei Chikami | 1-6,3-6 |
| ITF M15 Jakarta Qual | 2023/01/22 05:35 | Krittin Koaykul v Ha Minh Duc Vu | 6-4,4-6,4-10 |
| Challenger Nonthaburi | 2023/01/15 06:05 | Krittin Koaykul v Evgeny Donskoy | 2-6,4-6 |
| ITF M25 Nakhon Si Thammarat | 2023/06/13 02:00 | Thanapet Chanta v Kasidit Samrej | 3-6,4-6 |
| ITF M15 Nakhon Si Thammarat | 2023/06/09 03:25 | Maximus Jones v Kasidit Samrej | 6-1,6-7,7-6 |
| ITF M15 Nakhon Si Thammarat | 2023/06/08 04:55 | Pawit Sornlaksup v Kasidit Samrej | 4-6,3-6 |
| ITF M15 Nakhon Si Thammarat | 2023/06/07 02:00 | Jacob Bradshaw v Kasidit Samrej | 1-6,4-6 |
| ITF M15 Nakhon Si Thammarat | 2023/05/31 05:50 | Jacob Bradshaw v Kasidit Samrej | 3-6,6-3,6-4 |
| ITF M25 Jakarta | 2023/04/21 02:30 | Kasidit Samrej v Yanki Erel | 6-2,4-6,0-6 |
| ITF M25 Jakarta | 2023/04/18 07:00 | Christopher Rungkat v Kasidit Samrej | 3-6,5-7 |
| ITF M15 Singapore | 2023/04/06 04:35 | Sanhui Shin v Kasidit Samrej | 7-6,0-6,6-3 |